Beating-ehgihe iighteb-bab



131049604m Patented May 27, 1919.

N @Cyl l) 00 f I' l L2 l .11111 1111,., ,f l, K l1l I 11; I r ,I G' Y?[MMIII/HHM I1'11 1 1| l 1| mil E `1 71; ZF/ Z2 M. Ri RUST. BEATINGENGINE LIGHTER BAR. APPL1c/1T10N F1150 Nov. as,v 1918 MORTIMER R. RUST,0F FULTON, NEW YORK.

BEATING-ENGINE LIGHTER-BAR.

Specication of Letters Patent.

Patented May 27, 1919.

Application filed November 23, 1918. Serial No. 263,860: i

To all whom t may concern.'

Be it known that I, MoRTIMER R. RUST, citizen ofthe United States,residing at Fulton, in the county of Oswego and State of New York, haveinvented certain new and useful Improvements in Beating-EngineLighter-Bars, of which the following is a specification.

This invention relates to the particular class of machines known asbeating engines or rag engines, commonly used for the preparation of thestock or fiber for the manufacture of paper, paper board, roofing feltand other like products. It relates more especially to that part of thebeating engine or rag engine known as thel lightering or liftingmechanism which serves as a support and means of adjustment for thebeating roll.

The object of this invention is to provide devices for relieving theshocks and strains to which are subjected the lighter bars supportingthe bearings of the beating rolls; to give elasticity to the partscarrying the roll; to prevent damage to fly-bars and bedplates inbeating engines and the like, by cushioning the fall of the beating rollafter it has been raised from the `bearings during the operation, eitheraccidentally or otherwise; to thereb afford a exible, automaticadjustment o? the beating roll to the bedplate, and thus preventinginjury to the ber byA cutting, and, further, producing a moreA uniformquality of stock.

In-the operation of beating engines with which this applicant isacqualnted, the beating roll co-acts with and is adjusted ,with

respect to a steel bedplate, and the roll is carried in bearings ateither end, the bearings being supported on lighter bars. The lighterbars are borne at either one or both ends by means of screws affording avert-ical adjustment for regulating the position of the roll and itspressure on the bedplate. ln practice it often occurs that lumps ofpulp, bundlesof rags or other accumulated lmaterial passing between theroll and bedplate lift the roll out of the bearings and then allow it todrop back, thus producing a strain or shock to the lighter bars and notinfrequently breaking those parts. t is an object of this invention, bymeans of springs, rubber or other cushioning material, to produce ayielding resistance to shocks to which the lighter bars are exposed asexplained, and to carry the beating roll in such manner that if suddenly-lifted its bearings will follow it up and the impact of its ret-urn toits position will be cushioned and gradual. It is a' further object ofthis invention to produce mechanism which by balancing a portion of theweight of the beating roll with suitable cushioning material `anddevices, will produce an adjustment of the roll to the bedplate so thatif the flow of stock between the roll and bedplate is lumpy oruncven theroll will be automatically adjusted up and down, thus preventing theinjury of the fiber by cutting, and result-ing in a more uniform gradeof stock.

The stated objects are accomplished by means of the construction andarrangement of the parts illustrated in the accompanying drawing, ofwhich Figure l represents a side view of a beating engine'provided withthis invention. Fig. 2 is a side view of a lighter bar stand as shown inFig. 1 with the roll bearing removed. Fig. 3 is a side view of a lighterbar stand'as set out in Fig 2 with the roll bearing and box, the

saddle, one of the levers, and the spring acting thereon removed. Fig. 4is a side View of the saddle, and Fig. 5 is an end view thereof. Fig. 6is a side view of one of the levers with a portion broken away todisclose the half-cylindrical transverse portion that engages thefulcrum. Fig. 7 is an end view of one of the levers. Fig. 8 is acrosssection of the roll bearing .and bearing box'.

Throughout the drawings and description the same letter is used to referto the same part.

Considering the drawings, the roll shaft A is supported in the bearing acarried by the bearing box B, which has the depending flanges, such asthe flange b, which admit the lighter bar C between them. The bearingbox is carried by the curved saddle D, which passes between the flangesof the bearing box, adjacent to the edge of the lighter bar located alsobetween the ianges of the bearing box. The saddle has the shoulders Eand e. As stated, the saddle carries the bearing box, and the saddleitself is upheld by the Contact between the ends of the levers F and Gand the shoulders of the saddle, as best illustrated in Fig. l.

Both levers are alike` .-Ls shown in Figs. 6 and 7 the levers have sideflanges, such as the flanges H and /t of the lever F, and each lever has-a part-cylindrical transverse protuberance J extending between theflanges which engages the fulcrum K on the lighter bar.

The outer end of each lever has a crosswise groove L, which engages therounded transverse lug M of a rocking disk or spring seat plate nt. Avertical rod N with its lower end secured to the lighter bar passesupwardly through the plate m., and through the coil spring O, cap disliP, and thumbnut Q that engages the upper end of the rod N. By means ofthe thumb-nut the tension of the spring may be altered. The parts justdescribed lare duplicated for the other lever, as will be readilyunderstood from the drawings.

Considering Figs. 2 and 3, it will be observed that the middle portionof the upper edge of the lighter bar C is divided in the direction ofthe length of the lighter bar, and provided with two curving sides orextensions R and r spaced apart. The curved body of the saddle I)occupies and is freely movable in the space between the curving sides Rand r.

In explainin the operation of this invention, let it be assumed that alump of stock or bundle of rags has lifted the roll shaft upwardly outof its bearings. A part of the Weight of the roll and its shaft has beenbalanced by the adjustment of the tension of the coil springs which actupon the long legs of the levers, and, when the shaft is lifted thelevers raise the saddle, bearing box and bearing accordingly. In otherwords, as previously stated, the bearings follow the shaft up, and whenthe roll and shaft descend, the force of the springs acting through thelevers cushions the fall of the shaft and renders the same in a measuregradual. Injury to the roll or any portion of its structure iseffectively prevented.

Having now described this invention, and explained the inode of itsoperation, what I claim is l. In a beating engine, the combination witha lighter bar, of a roll shaft, a roll shaft bearing movable with thelighter bar, and means for cushioning the said bearing.

2. In a beating engine, the combination with a lighter bar, of a rollshaft, a movable roll shaft bearing carried by the lighter bar, andmeans for cushioning the said bearing.

3. In a beating. engine, the combination with a lighter bar, of a rollshaft, a movable roll shaft bearing carried by the lighter bar, meansfor cushioning the said bearing, and means for altering the tension ofthe said cushioning means.

4. In a beating engine, the combination with a lighter bar, of a rollshaft, a movable roll shaft bearing, and means for cushioning the saidbearing including a lever, and adjustable spring devices arranged to actupon the lever.

5. In a beating engine, the combination with a lighter bar, of a rollshaft, a movable roll shaft bearing, and means for cushioning the saidbearing including a lever fulcrumed upon the lighter bar, and adjustablespring devices arranged to act upon the lever.

6. In a beating engine, the combination with a lighter bar, of a rollshaft, a roll shaft bearing box, a saddle supporting the said box, andmeans for cushioning the saddle.

7. In a beating en ine, the combination with a lighter bar, of a rollshaft, a movable roll shaft bearing, a saddle supporting the bearing,and means acting upon the lighter bar for cushioning the saddle.

8. In a beating engine, the combination with a lighter bar, of a rollshaft, a roll shaft bearing, a saddle carrying the said bearing, meansfor cushioning the said saddle including .a lever fulcrumed upon thelighter bar, and adjustable spring devices borne by the lighter bar andarranged to act upon the lever.

9. In a beating engine, the combination with a lighter bar, of a rollshaft, a roll shaft bearing box having dependent side flanges admittingthe edge of the lighter bar between them, a saddle carrying the bearingbox and passing between the said flanges of the box, and means forcushioning the saddle.

l0. In a beating engine, the combination with a lighter bar, of a rollshaft, a roll shaft bearin box having dependent flan es admitting tieedge of the lighter bar etween them, a saddle carrying the saidbearingbox and passing between the said flanges, means for cushioning the saidsaddle, and means for modifying the tension of the cushioning means.

l1. In a beating engine, the combination with va lighter bar, of a rollshaft, a roll shaft bearing having dependent flanges admitting the edgeof the lighter bar between them, a saddle carrying the said bearing andpassing between the said flanges, means for cushioning the saddle uponthe lighter bar includingA a lever fulcrumed upon the lighter bar, andadjustable sprin devices arranged o act upon the lighter ar and upon theever.

12. In a beating engine, the combination' cushioning the said bearing.

side lianges admitting the edge of the lighter act upon the levers.

k13. I n a beating e bar betweenv them, and springs arranged t0 ne, thecombination with a lighter bar, o a roll shaft, a rolll shaft bearing, asaddle for supporting the said bearing and having shoulders at eitherend, levers fulcrumedupon the lighter bar and arranged to act upon theshoulders of the saddle, and springs arranged to act upon the saidlevers.

with a lighter bar,

a saddle supporting the shaft bearing box,

said box, and means borne by the lighter bar for cushioning the saidsaddle.

16. In a beating engine, the combination with .a roll shaft bearing,` ofa lighter bar having portions spaced apart laterally with respect to thelighter bar and located at'the upper edge of the lighter bar, and meansfor supporting the bearing having a mem# ber movably located between thesaid laterally spaced portions of the lighter bar.

17. In a beatingv engine, the combination with aroll shaft bearing, of alighter bar having spaced -side portions near its upper ed e,a saddlefor supportin the bearing yan having a portion movab y located be` tweenthe said spaced side portions of the lighter bar. l v v v In testimonywhereof I aiix my signature.

MORTIMER R. RUST.

